<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>用户登录</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
    <link href="https://cdn.bootcdn.net/ajax/libs/toastr.js/latest/css/toastr.min.css" rel="stylesheet">
</head>
<body>
    <div class="container">
        <div class="row">
            <div class="col">

            </div>
            <div class="col-6">
                <h3>用户登录</h3>
                <form>
                    <div class="form-group row">
                        <label for="inputEmail3" class="col-sm-2 col-form-label">Email</label>
                        <div class="col-sm-10">
                            <input type="email" class="form-control" id="inputEmail3" placeholder="Email">
                        </div>

                        <label for="inputPassword3" class="col-sm-2 col-form-label">Password</label>
                        <div class="col-sm-10">
                            <input type="password" class="form-control" id="inputPassword3" placeholder="Password">
                        </div>
                        <div class="col-sm-2">Checkbox</div>
                        <div class="col-sm-10">
                            <div class="form-check">
                                <div class="custom-control custom-switch">
                                    <input type="checkbox" class="custom-control-input" id="customSwitch1">
                                    <label class="custom-control-label" for="customSwitch1">Toggle this switch element</label>
                                </div>
                            </div>
                        </div>

                        <div class="text-center">
                            <button type="submit" class="btn btn-primary text-center">Sign in</button>
                        </div>
                    </div>
                </form>
            </div>
            <div class="col">

            </div>
        </div>


    </div>


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<script src="https://cdn.bootcdn.net/ajax/libs/toastr.js/latest/js/toastr.min.js"></script>
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</body>
</html>